Finding the Fourth Proportional to 2,299.71, 3,173.12 and 1,590.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299.71 : 3,173.12 = 1,590.42 : x
2. Step 2: Convert to fraction form
   2,299.71/3,173.12 = 1,590.42/x
3. Step 3: Cross multiply
   2,299.71x = 3,173.12 × 1,590.42
4. Step 4: Simplify right side
   2,299.71x = 5,046,569.69
5. Step 5: Solve for x
   x = 5,046,569.69/2,299.71
6. Step 6: Final answer
   x = 2,194.44